• The aim of the Task Force was to derive continuous prediction equations and their lower limits of normal for spirometric indices, which are applicable globally. (ersjournals.com)
  • Lung function data were collated and prediction equations derived using the LMS method, which allows simultaneous modelling of the mean (mu), the coefficient of variation (sigma) and skewness (lambda) of a distribution family. (ersjournals.com)
  • Spirometric prediction equations for the 3-95-age range are now available that include appropriate age-dependent lower limits of normal. (ersjournals.com)
  • Also many prediction equations are based on small numbers of subjects, using data collected decades ago so that changes in spirometric methodology and secular trends ( i.e . a trend in pulmonary function in successive birth cohorts) may affect the applicability to present day measurements. (ersjournals.com)
  • Forced expiratory value in 1 s (FEV1) and forced vital capacity (FVC) between ethnic groups differed proportionally from that in Caucasians, such that FEV1/FVC remained virtually independent of ethnic grou Spirometric prediction equations for the 3-95-age range are now available that include appropriate age-dependent lower limits of normal. (eur.nl)
  • Evaluating Changes in Metabolic Rate using Prediction Equations" by Christian Rodriguez, Patrick S. Harty et al. (wku.edu)
  • Prediction equations are most often employed by practitioners to estimate RMR, due to their superior practicality in many settings relative to laboratory methods like indirect calorimetry (IC). (wku.edu)
  • The purpose of this study was to assess the validity of several commonly used prediction equations to track RMR changes during a hypercaloric nutrition intervention and supervised exercise training program. (wku.edu)
  • Existing RMR prediction equations based on body mass or fat-free mass were also evaluated. (wku.edu)
  • All prediction equations underestimated RMR changes, relative to IC, with magnitudes ranging from 75 to 132 kcal/d, while also displaying unacceptable levels of negative proportional bias. (wku.edu)
  • Additionally, all prediction equations significantly differed from measured IC values, and no equation demonstrated equivalence with IC. (wku.edu)
  • These findings suggest the examined prediction equations are not acceptable for tracking RMR changes in resistance-trained males, within the context of the present study. (wku.edu)
  • The consistent underestimation of RMR changes indicates that the input variables, and their weights within the prediction equations, were insufficient to adequately explain the observed changes in RMR. (wku.edu)
  • This study aimed to determine the spirometric reference values for healthy Saudi Arabian children and adolescents and to derive prediction equations for these. (who.int)
  • 2005) Existence Results for n-Point Boundary Value Problem of Second Order Ordinary Differential Equations. (scirp.org)
  • Integrate a system of ordinary differential equations. (scipy.org)
  • Solve a system of ordinary differential equations using lsoda from the FORTRAN library odepack. (scipy.org)
  • Li, Z. and Shang, Y. (2014) Countably Many Positive Solutions for Nonlinear Singular n -Point Boundary Value Problems. (scirp.org)
  • Ma, R. (1999) Positive Solutions for a Nonlinear Three-Point Boundary Value Problem. (scirp.org)
  • Liu, B. (2004) Positive Solutions of Nonlinear Four-Point Boundary Value Problem. (scirp.org)
  • Ma, R. (2001) Existence of Solutions of Nonlinear m-Point Boundary Value Problem. (scirp.org)
  • The results show that under different monthly maximum rainfall the weight of each index is no longer a fixed value but a nonlinear and dynamic change law, and there is a strong correlation among the monthly maximum rainfall, internal friction angle, and cohesion. (hindawi.com)
  • The paper deals with data filtering on closed surfaces using linear and nonlinear diffusion equations. (math.sk)
  • It represents a nonlinear diffusion equation, which at the same time reduces noise and preserves main edges and other details important for a correct interpretation of the real data. (math.sk)
  • 4] E. Hairer, C. Lubich, M. Schlichte, Fast numerical solution of nonlinear Volterra convolution equations, SIAM J. Sci. (mathworks.com)
  • Spirometry reference equations for central European populations from school age to old age. (uni-muenchen.de)
  • Spirometry reference values are important for the interpretation of spirometry results. (uni-muenchen.de)
  • Such spirometry reference equations are currently lacking for central European populations. (uni-muenchen.de)
  • To develop spirometry reference equations for central European populations between 8 and 90 years of age. (uni-muenchen.de)
  • The spirometry reference equations were derived from 118'891 individuals consisting of 60'624 (51%) females and 58'267 (49%) males. (uni-muenchen.de)
  • We developed spirometry reference equations for a central European population between 8 and 90 years of age that can be implemented in a wide range of clinical settings. (uni-muenchen.de)
  • p values are from univariate generalized estimating equations logistic regression analysis. (cdc.gov)
  • A calibration equation was developed by multi linear regression (MLR) analysis correlating the percentage ratio of the kernel weight with the measured capacitance, dissipation factor and phase angle values of in-shell peanut samples with known kernel weights. (usda.gov)
  • In order to arrive at an equation which uses more conventional independent variables, a multiple regression analysis was performed on the data from Steadman's table. (cdc.gov)
  • Neue spirometrische Bezugswerte für Kinder, Jugendliche und Erwachsene" [New spirometric reference values for children, adolescents and adults]. (wikipedia.org)
  • An interactive figure where these equations can be numerically integrated is provided on paper website ( cremerlab.github.io/flux_parity ). (elifesciences.org)
  • We define a surface finite-volume method to approximate numerically parabolic partial differential equations on closed surfaces, namely on a sphere, ellipsoid or the Earth's surface.The closed surface as a computational domain is approximated by a polyhedral surface created by planar triangles and we construct a dual co-volume grid. (math.sk)
  • OBJECTIVE: To derive normative references for umbilical artery (UA) Doppler indices, including pulsatility index (PI), resistance index (RI), and systolic/diastolic (SD) ratio, for singleton pregnancies in Ile-Ife, Nigeria, and compare them with reference values from other populations. (bvsalud.org)
  • To avoid overwhelming the reader with too many algebra equations, I've included the derivation of Eq. (1) in Appendix A of the downloadable PDF file associated with this blog. (dsprelated.com)
  • Reference values and equations show strong variability and regional differences, despite a well-established role of the assessment of respiratory muscle strength (RMS) in children, with the objective to follow up on diseases that affect the function of respiratory muscles and enable adequate growth and development. (bvsalud.org)
  • Equation (4) has a significantly reduced computational workload relative to that of Eq. (3) as we shall see. (dsprelated.com)
  • Electronic Journal of Differential Equations, 34, 1-8. (scirp.org)
  • This is a useful condition in solving some classes of differential equations. (itk.org)
  • FDE12 solves an initial value problem for a non-linear differential equation of fractional order (FDE). (mathworks.com)
  • 1] K. Diethelm, A.D. Freed, The Frac PECE subroutine for the numerical solution of differential equations of fractional order, in: S. Heinzel, T. Plesser (Eds. (mathworks.com)
  • 3] K. Diethelm, Efficient solution of multi-term fractional differential equations using P(EC)mE methods, Computing 71 (2003), pp. 305-319. (mathworks.com)
  • 5] R. Garrappa, On linear stability of predictor-corrector algorithms for fractional differential equations, Internat. (mathworks.com)
  • Predictor-corrector PECE method for fractional differential equations (https://www.mathworks.com/matlabcentral/fileexchange/32918-predictor-corrector-pece-method-for-fractional-differential-equations), MATLAB Central File Exchange. (mathworks.com)
  • For every participant, five equations were used to calculate estimated glomerular filtration rate based on serum creatinine and/or cystatin C values: MDRD, CKD-EPIcreat, CKD-EPIcyst, CKD-EPIcreatcyst, and BIS equations. (biomedcentral.com)
  • In 2012, three new GFR-estimating equations based on serum creatinine and serum cystatin C values, age, and gender were validated. (biomedcentral.com)
  • The reference ranges for serum creatinine are listed below. (medscape.com)
  • The increase in serum creatinine is relatively minor at the earliest stages of disease due to mathematical reasons (eg, a patient whose baseline creatinine is 0.6 would have to lose more than 50% of his GFR before the creatinine would increase to 1.3 and first be noted to be "abnormal" by most reference intervals). (medscape.com)
  • For example, a white woman with a serum creatinine of 1.0 (a value within the traditional reference interval) has an eGFR of 59 mL/min/1.73 m 2 , a value consistent with chronic kidney disease . (medscape.com)
  • If we want to set the motor target speed to half-speed forward, we can use the above equations to compute that the first speed byte must be the remainder of 1600/32, or 0 , and the second speed byte must be the quotient of 1600/32, or 50 . (pololu.com)
  • Equation (3) is a correct way to compute an interpolated X ( k ) value, but look at it carefully. (dsprelated.com)
  • Before continuing, do you see a way to reduce the number of arithmetic operations needed to compute a single X ( k ) value? (dsprelated.com)
  • Ren, J., Ge, W. and Ren, X. (2005) Existence of Positive Solutions for Quasi-Linear Boundary Value Problems. (scirp.org)
  • The dynamics of precursors is given by a balance of synthesis, consumption, and dilution ( Aii ), replacing the corresponding equation of the simple model in ( Figure 1Biv ). (elifesciences.org)
  • begingroup$ I'm looking for series that have a value that agrees across different methods. (mathoverflow.net)
  • Because missing data are often systematic, there is a need for more pragmatic methods that can effectively deal with data sets containing missing values not missing at random. (springer.com)
  • The prevalence of chronic kidney disease (CKD) increases with age, and new glomerular filtration rate-estimating equations have recently been validated. (biomedcentral.com)
  • The epidemiology of CKD in older individuals and the relationship between a low estimated glomerular filtration rate as calculated by these equations and adverse outcomes remains unknown. (biomedcentral.com)
  • A lower estimated glomerular filtration rate did not predict a higher probability of severe cardiovascular events, except when using the CKD-EPIcyst equation. (biomedcentral.com)
  • Theoretically, low values may also reflect increased glomerular filtration rates (GFRs). (medscape.com)
  • The definition of several chronic pulmonary diseases, such as asthma and chronic obstructive pulmonary disease, includes reference to lung function, and they are associated with accelerated lung function decline. (bmj.com)
  • Specifically, MCAR denotes that the missing values are purely random and independent of other observed variables or parameters. (springer.com)
  • B ) Annotated equations of the model with key parameters highlighted in blue. (elifesciences.org)
  • C ) Key model parameters, their units, typical values in E. coli , and their appropriate references. (elifesciences.org)
  • Each of these parameters can be described by an equation but they are given assumed magnitudes (in parentheses) in order to simplify the model. (cdc.gov)
  • You should set reasonablee start values (but not zero values) for those parameters you want to parameterise (e.g. analogous values from the amber force field). (lu.se)
  • The equilibrium equation is as equation (8) and subtracting equation (46) we get. (codecogs.com)
  • Force constants and equilibrium values for angles in format f8.3, starting from columns 10 and 22. (lu.se)
  • For individuals not represented by these four groups, or of mixed ethnic origins, a composite equation taken as the average of the above equations is provided to facilitate interpretation until a more appropriate solution is developed. (ersjournals.com)
  • Depending on the hardware employed, you might use either a fixed-point or floating-point method to implement the calibration equations. (allaboutcircuits.com)
  • In Figure 1, the offset register (OFC) and full-scale register (FSC) contain the appropriate calibration values. (allaboutcircuits.com)
  • After calibration is initiated, the ADC automatically sets the value of the OFC and FSC registers. (allaboutcircuits.com)
  • However, with the ADS1246, it is possible for the user to directly write some values to these registers, which enables the user to have more control over the calibration function. (allaboutcircuits.com)
  • A calibration equation was developed to predict the total kernel weight and the equation was validated. (usda.gov)
  • La présente étude visait à déterminer les valeurs spirométriques de référence chez des enfants et des adolescents saoudiens en bonne santé et à en déduire des équations pronostiques pour ces derniers. (who.int)
  • 60 mL/min/1.73 m 2 differed depending on the equation used as follows: 44% (MDRD), 45% (CKD-EPIcreat), 75% (CKD-EPIcyst), 65% (CKD-EPIcreatcyst), and 80% (BIS). (biomedcentral.com)
  • In this study, we used the data from the BELFRAIL study to analyze the ability of GFR, estimated by older equations like the MDRD and CKD-EPI creatinine equations and the three new GFR equations, to predict mortality, necessity of renal replacement therapy (RRT), hospitalization, and severe cardiovascular events. (biomedcentral.com)
  • The equation was used to predict the percentage mass ratio in the validation groups. (usda.gov)
  • However, the epidemiology of CKD in older individuals and the relationship between low eGFR and adverse outcomes determined using these new equations have not been investigated. (biomedcentral.com)
  • First, there was an almost perfect correlation between the values of time for each split of the 40-m sprint measured with MySprint and the timing photocells (r=0.989-0.999, standard error of estimate=0.007-0.015 s, intraclass correlation coefficient (ICC)=1.0). (researchgate.net)
  • The methodology also includes the parameter values and tax equations underlying the data. (oecd-ilibrary.org)
  • A Font element can be contained in a Maplet element, in a font option equation, and as a parameter in an element that accepts a font. (maplesoft.com)
  • The definition of MAR, on the other hand, is somewhat counterintuitive in its name and assumes the missing values are dependent on observed data. (springer.com)
  • Learning from data that contain missing values represents a common phenomenon in many domains. (springer.com)
  • A value of 2.0 indicates a doubling of the original method standard deviation, whereas a value of 1.0 represents the original stable standard deviation. (westgard.com)
  • Using the double-angle identity cos 2 θ = 1 - 2 sin 2 θ, you can rewrite the equation as follows. (polymathlove.com)
  • For this the ratio of the weight of total kernels to the weight of the in-shell peanuts was correlated to the capacitance and phase angle values of a parallel-plate system holding a sample of in-shell peanuts. (usda.gov)
  • The opts argument can contain one or more of the following equations that set Maplet application options. (maplesoft.com)
  • A reference for the Maplet element. (maplesoft.com)
  • Also set the reference length to the appropriate reference length that you need to calculate the Nusselt number (it's probably your tube diameter or radius). (cfd-online.com)
  • Are reference values effect in calculate pressure drop? (cfd-online.com)
  • Equivalence testing was used to evaluate whether each prediction equation demonstrated equivalence with IC based on a ± 50 kcal/d equivalence region, and the confidence limits for the two-one-sided t-tests were calculated. (wku.edu)
  • This paper describes three variants of greedy search structure learning that utilise pairwise deletion and inverse probability weighting to maximally leverage the observed data and to limit potential bias caused by missing values. (springer.com)
  • After discarding 23,572 records, mostly because they could not be combined with other ethnic or geographic groups, reference equations were derived for healthy individuals aged 3-95 yrs for Caucasians (n=57,395), African-Americans (n=3,545), and North (n=4,992) and South East Asians (n=8,255). (ersjournals.com)
  • https://doi.org/10.1111/sms.12490] were then measured by each system, and values were compared for validity and reliability purposes. (researchgate.net)
  • Wolfram Research (1988), Abs, Wolfram Language function, https://reference.wolfram.com/language/ref/Abs.html (updated 2021). (wolfram.com)
  • So now, Eq. (4) is my preferred method for computing a single interpolated X ( k ) spectral value based on N FFT samples. (dsprelated.com)
  • reading was chosen for analysis based function reference values for each on taskforce standard series of the population (4) . (who.int)
  • WHO establishes and publishes specifications* for technical material and related formulations of public health pesticides with the objective that these specifications may be used to provide an international point of reference against which products can be judged either for regulatory purposes or in commercial dealings. (who.int)
  • A function object that determines a neighborhood of values at an image boundary according to a Neumann boundary condition where first, upwind derivatives on the boundary are zero. (itk.org)
  • 10 ] had established a mathematical model of landslide safety factor, rainfall intensity and rainfall duration through rainfall model test and laboratory test, and verified the reliability of the fitting equation. (hindawi.com)
  • Therefore, test results need to be compared to predicted values, and lower and upper limits of normal (LLN and ULN, respectively) that are appropriate for the individual being tested. (ersjournals.com)
  • However, you still need to specify the reference temperature in order to get the right heat transfer coefficient. (cfd-online.com)
  • The initial value point should be the first element of this sequence. (scipy.org)
  • Next, padding the x ( n ) time sequence with lots of zero-valued samples I computed a finer-granularity spectrum shown by the blue dashed curve in Figure 1(b). (dsprelated.com)
  • Knowing that my home-grown MATLAB code is about as reliable as the paper towel dispenser in the Men's Room, I asked our DSP colleague Neil Robertson to implement Eq. (1) using my above x(n) sequence and a value of k = 4.4688. (dsprelated.com)
  • This value is operating system dependent. (maplesoft.com)
  • This value is operating system dependent, and allows a font specification to scale up if the relevant accessibility option is adjusted. (maplesoft.com)
  • Additional data from the Indian subcontinent and Arabic, Polynesian and Latin American countries, as well as Africa will further improve these equations in the future. (ersjournals.com)
  • While numerous BN structure learning algorithms have been proposed in the literature over the past few decades, most of them do not efficiently learn from data that contain systematic missing values. (springer.com)
  • The allowed values for the second speed data byte are 0-100, so you can ignore the first speed data byte (always set it to 0), and consider the second data byte to simply be the speed percentage. (pololu.com)
  • The component provides API functions that use the generated coefficients to return the temperature value based on measured voltage values. (infineon.com)
  • In this circuit, the value of Vref is the reference voltage between the adjustment terminals and the output taken as 1.25 Volt. (circuitstoday.com)
  • As radiation and convection from the skin increases, this value decreases. (cdc.gov)
  • Until North American Asian-specific equations are developed, applying a correction factor of 0.88 to white reference values is considered reasonable when testing Asian American individuals in North America. (cdc.gov)
  • A value of 2.0 would indicate a systematic shift equivalent to two times smeas. (westgard.com)
  • Used in our quality planning models or error budget equations to indicate the size of systematic error that can be detected by a control procedure. (westgard.com)
  • It calculates the Steinhart-Hart equation coefficients based on the temperature range and corresponding user-provided reference resistances. (infineon.com)
  • If your reference temperature is constant, it is simple. (cfd-online.com)
  • Go to the reference values pane and set the reference temperature to your inlet temperature. (cfd-online.com)
  • WHO has the possibility to extend the scope of the specifications to similar products but only when the JMPS has been satisfied that the additional products are equivalent to that which formed the basis of the reference specification. (who.int)
  • The value of Iadj will be very small and will also have a constant value. (circuitstoday.com)
  • In the above equation, due to the small value of Iadj, the drop due to R2 is neglected. (circuitstoday.com)
  • According to the references [ 1 - 9 ], the slope failure at home and abroad is mostly related to rainfall, accounting for about 90% of the total number of landslides, which has caused significant casualties and property losses. (hindawi.com)
  • Mean field (MF) equations are iterated using annealing to min- imize the total energy. (lu.se)